Closing-up device for axle-bearings.



Nm 664,445. Patented nec. 25, |900.

- r. snTH. -V y lCLl'lSlNf-Ul EVICE FUR AXLE BEARINGS.

(Appummn med my 25. moo.)

` UNITED STATES PATENT OFFICE.

FRANCIS SRTH, OF DORTMUND, GERMANY.

CLOSING-UP DEVICE FOR AXLE-BEARINGS.

SPECIFICATION forming part of Letters Patent No. 664,445, dated December25, 1900.

Application filed May 25, 1900.

To a/ZZ whom t may concern:

Be it known that I, FRANCIS SRTH, a subject of the German Emperor, and aresident of Dortmund, in the Province of Westphalia,

y German Empire, have invented a new and useful Closing-Up Device forAxle-Bearings, of which the following is an exact specilication.

By my present invention the running out of the oil from the bearing-boxand especially the penetrating of dirt into it will be preven ted. Forthis purpose it is necessary that a device should be arranged whichcloses tightly, on the one hand, against the bearingbox and, on theother hand, against the axle.

In order to make my invention more clear, I refer to the accompanyingdrawings,in which similar letters denote similar parts throughout bothviews, and in which- Figure lis a longitudinal sect-ion of thisarrangement. Fig. 2 isa side View of the sa1ne.

With reference to the drawings, I) is a softindia-rubber ring with anannular space between the rear and front portions, the latter of greaterinternal diameter than the former, the rear portion bearing against theswell h of the axle. a is a cast-iron ring, and c a leather or leadring. The latter is, by means of rivets e, fastened to the walls of thebox f. The india-rubber ring b is only on its back side tightly set onthe axle, While its front b', which does not touch the axle, can befreely elongated in the horizontal direction. The ring a is connected tothe india-rubber ring b and is freely surrounding the axle. It can bemoved in horizontal direction and be pressed by means of theindia-rubber ring b against Serial No. 17,956. (No model.)

the leather or lead ring c. By this kind of arrangement neither is theaxle worn out by the device nor is the latter worn out by the axle.

The ring b has to fulfil three tasks: first, to prevent the oil fromrunning out in the horizontal direction second, to press the ring aagainst the leather or lead ring c, so as to prevent the oil fromrunning out in the vertical direction, and, third, to effect therotation of the device with the axle.

The ring a is provided with a metal spring d for the purpose ofpreventing the ring b from getting injured by the oil; but the latterarrangement is not absolutely necessary.

Having thus fully described the nature of this invention, what I desireto secure by Letters Patent of the United States is In a closing-updevice, the combination of an integral rubber ring having an annularspace between its front and rear portions, the latter of greaterinternal diameter than the former, and the rear portion bearing tightlyand the front loosely on the axle, a cast-iron ring connected to therubber ring and arranged to be freely moved horizontally, another ringattached to the bearing-box, and a spring inserted within the cast-ironring, substantially as set forth.

In Witness whereof I have hereunto set my hand in presence of twowitnesses.

FRANCIS sETH.

Witnesses WM. EssENwIIIN, ALBERT LIEBER.

